US4286879A
Expired / Lapsed
US
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Device, particularly for the digital measuring of force
Assignee: Individual
•
Filing: 1979-07-03
•
Granted: 1981-09-01
•
Expires: 1999-07-03
Abstract
Abstract A measuring device, particularly for the measurement of force, has a tilt-invariant interferometer attached to a bifurcated deformation body which consists of a base with one or several diaphragms attached thereon. The interference fringes are counted photoelectrically.
Inventors
- 👤 Gerd Jager
- 👤 Wolfgang Bernuth
- 👤 Klaus Irrgang
- 👤 Hans-Joachim Wendt
- 👤 Siegfried Honecker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 01:28
CPC Classifications
G; G01; G01L; G01L1/00; G01L1/24; G01B; G01B11/00; G01B11/16; G01B11/161; G01G; G01G23/00; G01G23/18; G01G23/32
Claims Analysis
Total Claims: 85
Claim 1
Independent Claim
129 words
A measuring device, particularly for the digital measurement of force, comprising a monochromatic light source; sensing means; a deformable body; at least one diaphragm operatively connected to said body; an optical splitter affixed to said body and adapted to receive light from said source; two interometer mirrors connected to said body; a first tilt-invariant reflector affixed to said body; a second tilt-invariant reflector affixed to said diaphragm; and force-receiving means operatively connected to said diaphragm so that the force to be measured is transmitted to said diaphragm causing the light from said source to be phase-shifted in said optical splitter, said mirrors and said first and second tilt-invariant reflectors in response to the displacement of said diaphragm under action of said force and thereupon detected by said sensing means.
Claim 2
Dependent Claim
129 words
A measuring device, particularly for the digital measurement of force, comprising a monochromatic light source; sensing means; a deformable body; at least one diaphragm operatively connected to said body; an optical splitter affixed to said body and adapted to receive light from said source; two interometer mirrors connected to said body; a first tilt-invariant reflector affixed to said body; a second tilt-invariant reflector affixed to said diaphragm; and force-receiving means operatively connected to said diaphragm so that the force to be measured is transmitted to said diaphragm causing the light from said source to be phase-shifted in said optical splitter, said mirrors and said first and second tilt-invariant reflectors in response to the displacement of said diaphragm under action of said force and thereupon detected by said sensing means.
Claim 3
Dependent Claim
23 words
A measuring device as defined in claim 1, further including a frame, said deformable body having a base rigidly mounted in said frame.
Claim 4
Dependent Claim
35 words
A measuring device as defined in claim 1, further including a second diaphragm, said second diaphragm being vertically spaced from said one diaphragm, said one diaphragm and said second diaphragm each having a free end.
Claim 5
Dependent Claim
25 words
A measuring device as defined in claim 3, further including at least one coupling element interconnecting said free ends of said one and second diaphragms.
Claim 6
Dependent Claim
59 words
A measuring device as defined in claim 4, wherein said force-receiving means comprise at least one load column, at least one kinematic guide, and at least one momentum-free coupling, said load column being linked to either of said diaphragms by said kinematic guide, and said load column being linked to the other of said diaphragms by said momentum-free coupling.
Claim 7
Dependent Claim
27 words
A measuring device of claim 5, wherein said force-receiving means further comprise at least one additional load column located at a predetermined additional site on said diaphragms.
Claim 8
Dependent Claim
19 words
A measuring device as defined in claim 1, wheren the interferometer mirrors are rigidly connected to the optical splitter.
Claim 9
Dependent Claim
19 words
A measuring device as defined in claim 4, wherein the interferometer mirrors are rigidly connected to the optical splitter.
Claim 10
Dependent Claim
19 words
A measuring device as defined in claim 5, wherein the interferometer mirrors are rigidly connected to the optical splitter.
Claim 11
Dependent Claim
19 words
A measuring device as defined in claim 6, wherein the interferometer mirrors are rigidly connected to the optical splitter.
Claim 12
Dependent Claim
54 words
A measuring device as defined in claim 4, wherein said first tilt-invariant reflector is located on said one diaphragm, said second tilt-invariant reflector is located on said second diaphragm diametrically opposite said first tilt-invariant reflector so that corner load effects are minimized, said reflectors being arranged as close to said coupling element as possible.
Claim 13
Dependent Claim
54 words
A measuring device as defined in claim 5, wherein said first tilt-invariant reflector is located on said one diaphragm, said second tilt-invariant reflector is located on said second diaphragm diametrically opposite said first tilt-invariant reflector so that corner load effects are minimized, said reflectors being arranged as close to said coupling element as possible.
Claim 14
Dependent Claim
54 words
A measuring device as defined in claim 6, wherein said first tilt-invariant reflector is located on said one diaphragm, said second tilt-invariant reflector is located on said second diaphragm diametrically opposite said first tilt-invariant reflector so that corner load effects are minimized, said reflectors being arranged as close to said coupling element as possible.
Claim 15
Dependent Claim
54 words
A measuring device as defined in claim 7, wherein said first tilt-invariant reflector is located in said one diaphragm, said second tilt-invariant reflector is located on said second diaphragm diametrically opposite said first tilt-invariant reflector so that corner load effects are minimized, said reflectors being arranged as close to said coupling element as possible.
Claim 16
Dependent Claim
54 words
A measuring device as defined in claim 8, wherein said first tilt-invariant reflector is located in said one diaphragm, said second tilt-invariant reflector is located on said second diaphragm diametrically opposite said first tilt-invariant reflector so that corner load effects are minimized, said reflectors being arranged as close to said coupling element as possible.
Claim 17
Dependent Claim
54 words
A measuring device as defined in claim 9, wherein said first tilt-invariant reflector is located on said one diaphragm, said second tilt-invariant reflector is located on said second diaphragm diametrically opposite said first tilt-invariant reflector so that corner load effects are minimized, said reflectors being arranged as close to said coupling element as possible.
Claim 18
Dependent Claim
53 words
A measuring device as defined in claim 10, wherein said first tilt-invariant reflector is located on said diaphragm, said second tilt-invariant reflector is located on said second diaphragm diametrically opposite said first tilt-invariant reflector so that corner load effects are minimized, said reflectors being arranged as close to said coupling element as possible.
Claim 19
Dependent Claim
21 words
A measuring device as defined in claim 1, further comprising an intermediate element inserted between said one diaphragm and said body.
Claim 20
Dependent Claim
21 words
A measuring device as defined in claim 2, further comprising an intermediate element inserted between said one diaphragm and said body.
Claim 21
Dependent Claim
21 words
A measuring device as defined in claim 5, further comprising an intermediate element inserted between said one diaphragm and said body.
Claim 22
Dependent Claim
21 words
A measuring device as defined in claim 5, further comprising an intermediate element inserted between said one diaphragm and said body.
Claim 23
Dependent Claim
21 words
A measuring device as defined in claim 6, further comprising an intermediate element inserted between said one diaphragm and said body.
Claim 24
Dependent Claim
21 words
A measuring device as defined in claim 7, further comprising an intermediate element inserted between said one diaphragm and said body.
Claim 25
Dependent Claim
21 words
A measuring device as defined in claim 8, further comprising an intermediate element inserted between said one diaphragm and said body.
Claim 26
Dependent Claim
21 words
A measuring device as defined in claim 9, further comprising an intermediate element inserted between said one diaphragm and said body.
Claim 27
Dependent Claim
21 words
A measuring device as defined in claim 10, further comprising an intermediate element inserted between said one diaphragm and said body.
Claim 28
Dependent Claim
21 words
A measuring device as defined in claim 11, further comprising an intermediate element inserted between said one diaphragm and said body.
Claim 29
Dependent Claim
21 words
A measuring device as defined in claim 1, wherein the force to be measured is applied on one of the diaphragms.
Claim 30
Dependent Claim
21 words
A measuring device as defined in claim 2, wherein the force to be measured is applied on one of the diaphragms.
Claim 31
Dependent Claim
21 words
A measuring device as defined in claim 4, wherein the force to be measured is applied on one of the diaphragms.
Claim 32
Dependent Claim
21 words
A measuring device as defined in claim 10, wherein the force to be measured is applied on one of the diaphragms.
Claim 33
Dependent Claim
21 words
A measuring device as defined in claim 6, wherein the force to be measured is applied on one of the diaphragms.
Claim 34
Dependent Claim
21 words
A measuring device as defined in claim 7, wherein the force to be measured is applied on one of the diaphragms.
Claim 35
Dependent Claim
21 words
A measuring device as defined in claim 8, wherein the force to be measured is applied on one of the diaphragms.
Claim 36
Dependent Claim
21 words
A measuring device as defined in claim 9, wherein the force to be measured is applied on one of the diaphragms.
Claim 37
Dependent Claim
21 words
A measuring device as defined in claim 10, wherein the force to be measured is applied on one of the diaphragms.
Claim 38
Dependent Claim
21 words
A measuring device as defined in claim 11, wherein the force to be measured is applied on one of the diaphragms.
Claim 39
Dependent Claim
23 words
A measuring device as defined in claim 4, wherein the force to be measured is applied to said one of the coupling elements.
Claim 40
Dependent Claim
23 words
A measuring device as defined in claim 5, wherein the force to be measured is applied to said one of the coupling elements.
Claim 41
Dependent Claim
23 words
A measuring device as defined in claim 6, wherein the force to be measured is applied to said one of the coupling elements.
Claim 42
Dependent Claim
23 words
A measuring device as defined in claim 7, wherein the force to be measured is applied to said one of the coupling elements.
Claim 43
Dependent Claim
23 words
A measuring device as defined in claim 8, wherein the force to be measured is applied to said one of the coupling elements.
Claim 44
Dependent Claim
23 words
A measuring device as defined in claim 9, wherein the force to be measured is applied to said one of the coupling elements.
Claim 45
Dependent Claim
23 words
A measuring device as defined in claim 10, wherein the force to be measured is applied to said one of the coupling elements.
Claim 46
Dependent Claim
23 words
A measuring device as defined in claim 11, wherein the force to be measured is applied to said one of the coupling elements.
Claim 47
Dependent Claim
19 words
A measuring device as defined in claim 1, wherein at least one diaphragm is composed of a siliceous material.
Claim 48
Dependent Claim
19 words
A measuring device as defined in claim 2, wherein at least one diaphragm is composed of a siliceous material.
Claim 49
Dependent Claim
19 words
A measuring device as defined in claim 4, wherein at least one diaphragm is composed of a siliceous material.
Claim 50
Dependent Claim
19 words
A measuring device as defined in claim 5, wherein at least one diaphragm is composed of a siliceous material.
Claim 51
Dependent Claim
19 words
A measuring device as defined in claim 6, wherein at least one diaphragm is composed of a siliceous material.
Claim 52
Dependent Claim
19 words
A measuring device as defined in claim 7, wherein at least one diaphragm is composed of a siliceous material.
Claim 53
Dependent Claim
19 words
A measuring device as defined in claim 8, wherein at least one diaphragm is composed of a siliceous material.
Claim 54
Dependent Claim
19 words
A measuring device as defined in claim 9, wherein at least one diaphragm is composed of a siliceous material.
Claim 55
Dependent Claim
19 words
A measuring device as defined in claim 10, wherein at least one diaphragm is composed of a siliceous material.
Claim 56
Dependent Claim
19 words
A measuring device as defined in claim 11, wherein at least one diaphragm is composed of a siliceous material.
Claim 57
Dependent Claim
17 words
A measuring device as defined in claim 18, wherein the intermediate element is composed of crystalline quartz.
Claim 58
Dependent Claim
17 words
A measuring device as defined in claim 19, wherein the intermediate element is composed of crystalline quartz.
Claim 59
Dependent Claim
17 words
A measuring device as defined in claim 20, wherein the intermediate element is composed of crystalline quartz.
Claim 60
Dependent Claim
17 words
A measuring device as defined in claim 21, wherein the intermediate element is composed of crystalline quartz.
Claim 61
Dependent Claim
17 words
A measuring device as defined in claim 22, wherein the intermediate element is composed of crystalline quartz.
Claim 62
Dependent Claim
17 words
A measuring device as defined in claim 23, wherein the intermediate element is composed of crystalline quartz.
Claim 63
Dependent Claim
17 words
A measuring device as defined in claim 24, wherein the intermediate element is composed of crystalline quartz.
Claim 64
Dependent Claim
17 words
A measuring device as defined in claim 25, wherein the intermediate element is composed of crystalline quartz.
Claim 65
Dependent Claim
17 words
A measuring device as defined in claim 26, wherein the intermediate element is composed of crystalline quartz.
Claim 66
Dependent Claim
17 words
A measuring device as defined in claim 27, wherein the intermediate element is composed of crystalline quartz.
Claim 67
Dependent Claim
19 words
A measuring device as defined in claim 4, wherein at least one coupling element is composed of siliceous material.
Claim 68
Dependent Claim
19 words
A measuring device as defined in claim 5, wherein at least one coupling element is composed of siliceous material.
Claim 69
Dependent Claim
19 words
A measuring device as defined in claim 6, wherein at least one coupling element is composed of siliceous material.
Claim 70
Dependent Claim
19 words
A measuring device as defined in claim 7, wherein at least one coupling element is composed of siliceous material.
Claim 71
Dependent Claim
19 words
A measuring device as defined in claim 8, wherein at least one coupling element is composed of siliceous material.
Claim 72
Dependent Claim
19 words
A measuring device as defined as claim 9, wherein at least one coupling element is composed of siliceous material.
Claim 73
Dependent Claim
19 words
A measuring device as defined in claim 10, wherein at least one coupling element is composed of siliceous material.
Claim 74
Dependent Claim
19 words
A measuring device as defined in claim 11, wherein at least one coupling element is composed of siliceous material.
Claim 75
Dependent Claim
18 words
A measuring device as defined in claim 1, wherein at least one diaphragm is composed of crystalline quartz.
Claim 76
Dependent Claim
18 words
A measuring device as defined in claim 3, wherein at least one diaphragm is composed of crystalline quartz.
Claim 77
Dependent Claim
18 words
A measuring device as defined in claim 4, wherein at least one diaphragm is composed of crystalline quartz.
Claim 78
Dependent Claim
18 words
A measuring device as defined in claim 5, wherein at least one diaphragm is composed of crystalline quartz.
Claim 79
Dependent Claim
18 words
A measuring device as defined in claim 6, wherein at least one diaphragm is composed of crystalline quartz.
Claim 80
Dependent Claim
18 words
A measuring device as defined in claim 7, wherein at least one diaphragm is composed of crystalline quartz.
Claim 81
Dependent Claim
18 words
A measuring device as defined in claim 8, wherein at least one diaphragm is composed of crystalline quartz.
Claim 82
Dependent Claim
18 words
A measuring device as defined in claim 9, wherein at least one diaphragm is composed of crystalline quartz.
Claim 83
Dependent Claim
18 words
A measuring device as defined in claim 10, wherein at least one diaphragm is composed of crystalline quartz.
Claim 84
Dependent Claim
18 words
A measuring device as defined in claim 11, wherein at least one diaphragm is composed of crystalline quartz.
Claim 85
Dependent Claim
16 words
A measuring device as defined in claim 1, wherein the deformable body is composed of quartz.
References Cited (Backward Citations)
US1159416A
Cited
US3622244A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-08-31 | 1985-03-02 | 1985-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-08-31 | 1989-03-02 | 1989-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-08-31 | 1993-03-02 | 1993-09-01 | $7700.00 | Window Closed / Lapsed |